Quasielastic magnetic scattering of neutrons at the systems with heavy fermions
Abstract
The theory of the quasielastic magnetic scattering of neutrons at the spin liquid with RVB (resonance valence bonds) correlations is presented. Calculations demonstrate that the dependence of the scattering cross section on the energy transfer reproduces experimental shape of quasielastic peak in heavy fermion systems. It is shown that Fermi statistics of the spin liquid elementary excitations leads to the oscillations of the quasielastic scattering total cross section as a function of the momentum transfer.
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